I would highly recommend the Jopen Vr6.5, or the Vr.5.5. I'm so not a rabbit girl, but I love those two.

Jenn recommended FiFi above... I have Fifi, and it's pretty good, but I'm not sure I'd agree that it offers direct contact. I really don't get much clitoral stimulation from that at all unless I push on the ears (which don't have much flex at all).

This is a really good question! I'd like to see some more answers as well, as I like a lot of pressure on my clit, something that a lot of rabbits don't have. I have the Zini Hua, which is absolutely amazing for me in terms of direct stimulation, although it is pretty anatomy dependent.